Radio impacts due to group triggering and paging and solutions for group triggering and paging

Abstract

A method includes transmitting a paging indicator indicating to user equipment assigned to one or more groups that the user equipment are to attempt to receive paging messages including paging information targeted to at least one of the one or more groups; and transmitting in a channel the paging information in the paging messages. Another method includes receiving a paging indicator indicating a user equipment is to attempt to receive paging messages including paging information targeted to at least one of one or more groups; and receiving from a channel the paging information in the paging messages. A method includes sending a request message to user equipment assigned to one or more groups, the request message comprising an indication to cause the user equipment to read device trigger information in a system broadcast message; and sending the device trigger information in the system broadcast message.

What is claimed is: 
     
       1. A method comprising:
 transmitting a paging indicator indicating to user equipment assigned to one or more groups of a plurality of groups that the user equipment are to attempt to receive one or more paging messages comprising paging information targeted to at least one of the one or more groups, wherein the paging indicator is a common paging indicator for all groups of the plurality of groups, the common paging indicator indicating to any user equipment assigned to any of the groups of the plurality of groups that in addition to legacy paging the user equipment are to attempt to receive one or more paging messages comprising paging information targeted to at least one of the one or more groups; and 
 transmitting in a channel the paging information in the one or more paging messages. 
 
     
     
       2. The method of  claim 1 , wherein transmitting the paging information further comprises transmitting the one or more paging messages in one or more locations in the channel that are based at least in part on one or more group identifications corresponding to the one or more groups. 
     
     
       3. The method of  claim 2 , wherein transmitting a paging indicator further comprises transmitting the paging indicator at a location in the channel that is not based on the one or more group identifications. 
     
     
       4. The method of  claim 1 , wherein the paging information in at least one of the one or more paging messages comprises paging records targeting the at least one group and targeting at least one user equipment on an individual basis. 
     
     
       5. The method of  claim 1 , wherein transmitting the paging information further comprises transmitting the one or more messages at one or more first locations in the channel, and wherein the method further comprises transmitting paging information targeting user equipment on an individual basis on one or more second paging messages at one or more second locations on the paging channel, wherein the one or more second paging messages do not contain paging information for any user equipment assigned to a group. 
     
     
       6. The method of  claim 5 :
 wherein transmitting the paging information further comprises transmitting the one or more group paging locations in first paging cycles; 
 wherein transmitting the second paging information further comprises transmitting the one or more second paging locations in second paging cycles; and 
 wherein the first paging cycles and second paging cycles are different. 
 
     
     
       7. The method of  claim 6 , wherein the first paging cycles alternate with the second paging cycles in a set of the first and second paging cycles. 
     
     
       8. The method of  claim 7 , wherein
 the second paging cycles are transmitted at second paging occasions, and the second paging occasions are defined by the following:
   Paging Occasion={(IMSI div  K )mod( DRX  cycle length div PBP)}*PBP+ n* 2 *DRX  cycle length+frame offset, 
 wherein IMSI is an international mobile subscriber identity for a particular user equipment, K is a parameter linked to a number of secondary common control physical locations, DRX is discontinuous reception, PBP is a paging block periodicity, n=0, 1, 2 . . . system frame numbers as long as the system frame number is below a maximum value, and frame offset is preconfigured; and 
 
 the first paging cycles are transmitted at first paging occasions, and the first paging occasions are defined by the following:
   Paging Occasion={ n } mod( DRX  cycle length div PBP)}*PBP+((2 *n+ 1)* DRX  cycle length)+frame offset. 
 
 
     
     
       9. The method of  claim 8 , wherein:
 the paging indicator occupies a first location within the first cycle, the first location defined by a first page indicator; 
 the method further comprises transmitting a second paging indicator indicating to user equipment whether to access the second paging information at the second paging occasion, the second paging indicator occupying a second location defined by a second page indicator; 
 the second page indicator to use for the particular user equipment is the following:
   PI= DRX  index mod  Np,    
 wherein DRX index=IMSI div 8192 and Np is a number of page indicators within a corresponding frame; 
 
 the first page indicator to use for the particular user equipment is the following:
   PI=(SFN div 2)mod  Np,    
 wherein SFN is system frame number. 
 
 
     
     
       10. The method of  claim 1 , wherein transmitting the page indicator further comprises transmitting the page indicator in a determined location in a paging indication space in a discontinuous reception cycle. 
     
     
       11. The method of  claim 10 , wherein the determined location is determined using an algorithm that varies over time the determined location in the paging indication space. 
     
     
       12. The method of  claim 1 , wherein the paging indicator further indicates that in a current or a subsequent paging cycle comprising the one or more messages, one or more groups is or are being paged in a paging occasion derived from an identity of an addressed group instead of an identity of an individual one of the user equipment. 
     
     
       13. The method of  claim 12 , wherein the paging indicator further indicates one or more subsets of a plurality of groups to which the one or more groups that are being paged belong. 
     
     
       14. The method of  claim 1 , wherein transmitting the paging indicator further comprises transmitting the paging indicator in a system information block to user equipment, the paging indicator comprising information indicating a group paging cycle and a group paging occasion, and wherein transmitting the paging information further comprises transmitting the one or more messages in the group paging occasion within the group paging cycle. 
     
     
       15. A method, comprising:
 sending a group paging request message to user equipment assigned to one or more groups of a plurality of groups that the user equipment are to attempt to receive one or more paging messages comprising paging information targeted to at least one of the one or more groups, the group paging request message including a device trigger notification as an indication to cause the user equipment to read device trigger information in a message in a system information block, the device trigger information including a common paging indicator for all groups of the plurality of groups, the common paging indicator indicating to any user equipment assigned to any of the groups of the plurality of groups that in addition to legacy paging the user equipment are to attempt to receive one or more paging message comprising paging information targeted to at least one of the one or more groups; and 
 sending the device trigger information in the message in the system information block, the message including at least one command for the user equipment. 
 
     
     
       16. A method, comprising:
 receiving, at a user equipment assigned to one or more groups of a plurality of groups, a paging indicator indicating to the user equipment that the user equipment is to attempt to receive one or more paging messages comprising paging information targeted to at least one of the one or more groups, wherein the paging indicator is a common paging indicator for all groups of the plurality of groups, the common paging indicator indicating to any user equipment assigned to any of the groups of the plurality of groups that in addition to legacy paging the user equipment are to attempt to receive one or more paging messages comprising paging information targeted to at least one of the one or more groups; and 
 receiving from a channel the paging information in the one or more paging messages. 
 
     
     
       17. The method of  claim 16 , wherein receiving the paging information further comprises receiving the one or more paging messages in one or more locations in the channel that are based at least in part on one or more group identifications corresponding to the one or more groups. 
     
     
       18. The method of  claim 17 , wherein receiving a paging indicator further comprises receiving the paging indicator at a location in the channel that is not based on the one or more group identifications. 
     
     
       19. The method of  claim 16 , wherein the paging information in at least one of the one or more paging messages comprises paging records targeting the at least one group and targeting at least one user equipment on an individual basis. 
     
     
       20. The method of  claim 16 , wherein receiving the paging information further comprises receiving the one or more messages at one or more first locations in the channel, and wherein the method further comprises receiving paging information targeting user equipment on an individual basis on one or more second paging messages at one or more second locations on the paging channel, wherein the one or more second paging messages do not contain paging information for any user equipment assigned to a group. 
     
     
       21. The method of  claim 20 :
 wherein receiving the paging information further comprises receiving the one or more group paging locations in first paging cycles; 
 wherein receiving the second paging information further comprises receiving the one or more second paging locations in second paging cycles; and 
 wherein the first paging cycles and second paging cycles are different. 
 
     
     
       22. The method of  claim 21 , wherein the first paging cycles alternate with the second paging cycles in a set of the first and second paging cycles. 
     
     
       23. The method of  claim 22 , wherein
 the second paging cycles are received at second paging occasions, and the second paging occasions are defined by the following:
   Paging Occasion={(IMSI div  K )mod( DRX  cycle length div PBP)}*PBP+ n* 2 *DRX  cycle length+frame offset, 
 wherein IMSI is an international mobile subscriber identity for a particular user equipment, K is a parameter linked to a number of secondary common control physical locations, DRX is discontinuous reception, PBP is a paging block periodicity, n=0, 1, 2 . . . system frame numbers as long as the system frame number is below a maximum value, and frame offset is preconfigured; and 
 
 the first paging cycles are received at first paging occasions, and the first paging occasions are defined by the following:
   Paging Occasion={ n } mod( DRX  cycle length div PBP)}*PBP+((2 *n+ 1)* DRX  cycle length)+frame offset. 
 
 
     
     
       24. The method of  claim 23 , wherein:
 the paging indicator occupies a first location within the first cycle, the first location defined by a first page indicator; 
 the method further comprises receiving a second paging indicator indicating to user equipment whether to access the second paging information at the second paging occasion, the second paging indicator occupying a second location defined by a second page indicator; 
 the second page indicator to use for the particular user equipment is the following:
   PI= DRX  index mod  Np,    
 wherein DRX index=IMSI div 8192 and Np is a number of page indicators within a corresponding frame; 
 
 the first page indicator to use for the particular user equipment is the following:
   PI=(SFN div 2)mod  Np,    
 wherein SFN is system frame number. 
 
 
     
     
       25. The method of  claim 16 , wherein receiving the page indicator further comprises receiving the page indicator in a determined location in a paging indication space in a discontinuous reception cycle. 
     
     
       26. The method of  claim 16 , wherein receiving the paging indicator further comprises receiving the paging indicator in the channel. 
     
     
       27. The method of  claim 16 , wherein the paging indicator further indicates that in a current or a subsequent paging cycle comprising the one or more messages, one or more groups is or are being paged in a paging occasion derived from an identity of an addressed group instead of an identity of an individual one of the user equipment. 
     
     
       28. The method of  claim 16 , wherein receiving the paging indicator further comprises receiving the paging indicator in a system information block, the paging indicator comprising information indicating a group paging cycle and a group paging occasion, and wherein receiving the paging information further comprises receiving the one or more messages in the group paging occasion within the group paging cycle. 
     
     
       29. The method of  claim 1 , wherein the method is performed using a computer program product comprising a non-transitory computer readable medium and a computer program stored on the computer readable medium. 
     
     
       30. The method of  claim 16 , wherein the method is performed using a computer program product comprising a non-transitory computer readable medium and a computer program stored on the computer readable medium. 
     
     
       31. The method of  claim 15 , wherein the method is performed using a computer program product comprising a non-transitory computer readable medium and a computer program stored on the computer readable medium.